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# {while}
`{while}` loops in Smarty have much the same flexibility as PHP
[while](https://www.php.net/while) statements, with a few added features for
the template engine. Every `{while}` must be paired with a matching
`{/while}`. All PHP conditionals and functions are recognized, such as
*\|\|*, *or*, *&&*, *and*, *is_array()*, etc.
The following is a list of recognized qualifiers, which must be
separated from surrounding elements by spaces. Note that items listed in
\[brackets\] are optional. PHP equivalents are shown where applicable.
## Qualifiers
| Qualifier | Alternates | Syntax Example | Meaning | PHP Equivalent |
|--------------------|------------|----------------------|--------------------------------|--------------------|
| == | eq | $a eq $b | equals | == |
| != | ne, neq | $a neq $b | not equals | != |
| > | gt | $a gt $b | greater than | > |
| < | lt | $a lt $b | less than | < |
| >= | gte, ge | $a ge $b | greater than or equal | >= |
| <= | lte, le | $a le $b | less than or equal | <= |
| === | | $a === 0 | check for identity | === |
| ! | not | not $a | negation (unary) | ! |
| % | mod | $a mod $b | modulo | % |
| is \[not\] div by | | $a is not div by 4 | divisible by | $a % $b == 0 |
| is \[not\] even | | $a is not even | \[not\] an even number (unary) | $a % 2 == 0 |
| is \[not\] even by | | $a is not even by $b | grouping level \[not\] even | ($a / $b) % 2 == 0 |
| is \[not\] odd | | $a is not odd | \[not\] an odd number (unary) | $a % 2 != 0 |
| is \[not\] odd by | | $a is not odd by $b | \[not\] an odd grouping | ($a / $b) % 2 != 0 |
## Examples
```smarty
{while $foo > 0}
{$foo--}
{/while}
```
The above example will count down the value of $foo until 1 is reached.
See also [`{foreach}`](./language-function-foreach.md),
[`{for}`](./language-function-for.md) and
[`{section}`](./language-function-section.md).
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